Home / 13,245.97-18,274.20-8,533

Finding the Fourth Proportional to 13,245.97, 18,274.20 and 8,533

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Solution

The fourth proportional to 13,245.97, 18,274.20 and 8,533 is: 11,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.97 : 18,274.20 = 8,533 : x
  2. Step 2: Convert to fraction form
    13,245.97/18,274.20 = 8,533/x
  3. Step 3: Cross multiply
    13,245.97x = 18,274.20 × 8,533
  4. Step 4: Simplify right side
    13,245.97x = 155,933,748.60
  5. Step 5: Solve for x
    x = 155,933,748.60/13,245.97
  6. Step 6: Final answer
    x = 11,772.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.